What’s Vulnerable › Vulnerabilities

CVE-2022-50181: virtio-gpu: fix a missing check to avoid NULL dereference

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: virtio-gpu: fix a missing check to avoid NULL dereference 'cache_ent' could be set NULL inside virtio_gpu_cmd_get_capset() and it will lead to a NULL dereference by a lately use of it (i.e., ptr = cache_ent->caps_cache). Fix it with a NULL check. [ kraxel: minor codestyle fixup ]

Affected products

• Linux kernel: from 4.4 before 5.10.137; from 5.11 before 5.15.61; from 5.16 before 5.18.18; from 5.19 before 5.19.2 — fixed in 5.10.137, 5.15.61, 5.18.18, 5.19.2

How to fix

Upgrade to a fixed version: Linux kernel 5.10.137, 5.15.61, 5.18.18, 5.19.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/259773fc874258606c0121767a4a27466ff337eb
• https://git.kernel.org/stable/c/367882a5a9448b5e1ba756125308092d614cb96c
• https://git.kernel.org/stable/c/39caef09666c1d8274abf9472c72bcac236dc5fb
• https://git.kernel.org/stable/c/adbdd21983fa292e53aec3eab97306b2961ea887
• https://git.kernel.org/stable/c/bd63f11f4c3c46afec07d821f74736161ff6e526

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